Hmmm, 15 years ago Beckham made his move to RM (after his situation escalated with SAF), 17 years ago Zidane forced his way to RM from Italy biggest team, Owen forced his way to RM 14 years ago, Henry told Arsenal he wants to go to Barca 11 years ago and the list goes on and on.
La liga culture has been insane, famous and appreciated for decades, they made glaring mistakes in marketing when they didn't explore Asian markets |(62% of world population) and USA (The country that has bigger GDP than whole European Union) but there has been a lot of work to catch those.
Messi and Cr7 are the greatest player rivalry in history of the game. What they have done will be remembered and used in marketing beyond their time. Obviously losing this rivalry will hurt a bit but it was gonna happen anyway.
As you keep saying Barca and RM will always buy stars. we weill survive
Beckham, after a fight with Ferguson, and in the days when EPL was not reach as today.
Zidane, A Frenchman playing for an Italian team, coming to Spain, aged 29, for his last, the most lucrative contract. It happens, he is not "connected" with any of clubs, like English players (EPL) today or German players.
Owen, coming from Liverpool which wasn't able to win anything and yet Liverpool even lost the momentum from Owen's early years, iirc.
I am not saying that Barca and Real will die.
But we were No1 and No2, or in the worst case, Top3 in the last 10-12 years BOTH.
Imagine tomorrow Barca without Messi. Is Barca with Coutinho and Dembele as leaders a top3 team in the world? I don't think so.
My point is: from an undisputed No1 and No2, we will drop to Top 5-6-7 equal teams:
Barca, Real, Bayern, Psg, City, Chelsea, Juventus.
Even today, WITH Messi, a huge part of neutral fans don't rate Barca as a Top 2-3 team anymore, they rate us as "one of" top 4-5-6 equally good teams.